package com.atguigu.survey.component.dao.i;

import com.atguigu.survey.entities.guest.User;

import java.util.List;

public interface UserMapper {
    int deleteByPrimaryKey(Integer userId);

    int insert(User record);

    User selectByPrimaryKey(Integer userId);

    List<User> selectAll();

    int updateByPrimaryKey(User record);

    int isExistsUserName(String userName);
}